src/NativeTable.h
changeset 195 c1ba166f3fc4
child 196 9904633b1dfc
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/NativeTable.h	Sat Nov 17 18:41:01 2012 -0800
     1.3 @@ -0,0 +1,89 @@
     1.4 +/* vim: set ts=4 sw=4 tw=99 et:
     1.5 + *
     1.6 + * Copyright (C) 2012 David Anderson
     1.7 + *
     1.8 + * This file is part of SourcePawn.
     1.9 + *
    1.10 + * SourcePawn is free software: you can redistribute it and/or modify it under
    1.11 + * the terms of the GNU General Public License as published by the Free
    1.12 + * Software Foundation, either version 3 of the License, or (at your option)
    1.13 + * any later version.
    1.14 + * 
    1.15 + * SourcePawn is distributed in the hope that it will be useful, but WITHOUT ANY
    1.16 + * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    1.17 + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
    1.18 + *
    1.19 + * You should have received a copy of the GNU General Public License along with
    1.20 + * SourcePawn. If not, see http://www.gnu.org/licenses/.
    1.21 + */
    1.22 +#ifndef _include_sp2_native_table_h_
    1.23 +#define _include_sp2_native_table_h_
    1.24 +
    1.25 +#include "AllocatorPolicies.h"
    1.26 +#include "Strings.h"
    1.27 +#include "HashTable.h"
    1.28 +#include "Vector.h"
    1.29 +#include "VirtualObjectVisitor.h"
    1.30 +
    1.31 +namespace ke {
    1.32 +
    1.33 +class NativeTable
    1.34 +{
    1.35 +  public:
    1.36 +    NativeTable(Zone *zone);
    1.37 +    ~NativeTable();
    1.38 +
    1.39 +  private:
    1.40 +    struct NativeInfo {
    1.41 +        Unbarriered<String> name;
    1.42 +        void *address;
    1.43 +        size_t index;
    1.44 +
    1.45 +        NativeInfo(String *name, void *address, size_t index)
    1.46 +          : address(address),
    1.47 +            index(index)
    1.48 +        {
    1.49 +            this->name = name;
    1.50 +        }
    1.51 +    };
    1.52 +
    1.53 +    struct Policy
    1.54 +    {
    1.55 +        typedef NativeInfo * Payload;
    1.56 +
    1.57 +        static uint32 hash(const CharsAndLength &key) {
    1.58 +            return HashCharSequence(key.str(), key.length());
    1.59 +        }
    1.60 +        
    1.61 +        static bool matches(const CharsAndLength &key, NativeInfo *info) {
    1.62 +            if (info->name->length() != key.length())
    1.63 +                return false;
    1.64 +            return memcmp(info->name->chars(), key.str(), key.length() * sizeof(char)) == 0;
    1.65 +        }
    1.66 +    };
    1.67 +
    1.68 +    typedef HashTable<Policy, ZoneAllocatorPolicy> NativeMap;
    1.69 +
    1.70 +  public:
    1.71 +    bool initialize();
    1.72 +
    1.73 +    bool bind(const char *name, void *address);
    1.74 +    bool add(Handle<String> name, size_t *indexp);
    1.75 +    String *name(size_t index) const {
    1.76 +        return natives_[index]->name;
    1.77 +    }
    1.78 +    void *address(size_t index) const {
    1.79 +        return natives_[index]->address;
    1.80 +    }
    1.81 +
    1.82 +    void accept(VirtualObjectVisitor *visitor);
    1.83 +
    1.84 +  private:
    1.85 +    Zone *zone_;
    1.86 +    NativeMap nativeMap_;
    1.87 +    Vector<NativeInfo *> natives_;
    1.88 +};
    1.89 +
    1.90 +}
    1.91 +
    1.92 +#endif // _include_sp2_native_table_h_